the history review of car headlights, may say that in three days and three nights, from halogen, xenon to LED, OLED, and laser lamps, lamp factory hella also in research and development of liquid crystal lamps, such as car headlights with the generation and evolution of vehicles, halogen headlamps have gradually out of people's horizons, laser headlight is too small, let's talk about today, xenon headlights and LED lamps are two kinds of light source, who is better?
the high pressure gas discharge lamp.By uv crystal the glass tube filled with a variety of chemical gas, inert gases such as xenon, then through the supercharger will car 12 v power instantly rose to 23000 v, under the high voltage, xenon will be ionized and in the power between two poles produce light source.Advantage lies in the high brightness, long life than halogen lamp, looks more upscale than halogen yellow
commonly known as light emitting diodes, set the xenon lamp all advantages, in addition, two unique advantages, a single diode is small in size, can have a variety of light internal design, more cool;A light chamber, a number of light sources can be placed to form the lamp array matrix, Benz, audi multiple beam), another advantage is incomparable, xenon lamp is to start extremely fast, stroboscopic can maximum brightness in an instant
which light road works?
headlights illuminate the road in the night is the ultimate value, reduce light dead Angle, so we do the actual test
above close for xenon lamp light effect, can see two obvious light, bright enough, by two beam width on both sides to weaken gradually dim, if matching the original car servo steering system, the lens will be consistent according to the steering wheel Angle around illuminate, better
look at the LED headlight near light path effect, no comparison, no damage, the LED brightness higher, the road is a large illuminated according to road is better than that of xenon lamp that have obvious changes of light and shade effect, and on both sides of the width and the brightness will be better.Short, low beam, LED headlight victory
look at two kinds of light source, in effect, although the LED light still wider and wider brightness, but far away place, obviously than xenon lamp, in other words, xenon lamp color temperature is lower than the LED, penetration is better, as further.Another reason, the experiment of the LED headlight models, although the lamp cavity is composed of multiple light sources, but there is no lens models LED lamps have lens design (part), as xenon lamp condenser.Actual measurement results also verify the inference
good standards of lights is?
simple says, is to ensure that the brightness (which is also the cause of the halogen light source to be being washed out gradually), nearly wide light (LED), in the far xenon lamp performance better (lens), light corner as little as possible (LED a single light source is small in size, light cavity can design the illuminate of different regions, in theory, can realize the car in front of the area without dead Angle).There are especially important, no matter what kind of light source, is not to cause to the vehicle dazzle light
the IIHS has sold in 31 headlight appraisal models, each model selection scores the highest one as the final set of headlight test score
if you join a car headlights dazzle light paint test, only to pass the exam scores, so a good headlight more light is bright enough so simple, to meet all the requirements of the above at the same time, as far as possible to reduce glare and standard, this is safe, is also a moral!
about the change of light
a lot of original headlight cannot meet the demand of driving at night, you can choose the lights to be modified.Xenon lamp modified technology is very mature, hela, small si giant lens performance is good, but remember that xenon bulbs must match lens are used together, be responsible for other vehicles on the road, but also for yourself.As for the LED, there are many online LED bulbs, claimed to have 20% increased brightness, if you change a pair without light distribution of LED headlight bulb with a less known and inferior brand, although the LED headlight bulb is very bright, but he and the lamps and lanterns of the original car to match is bad, will cause the light does not gather, the irradiation distance is limited, even worse than halogen lamp, may not be able to change more and more bright, and LED to the high demand for cooling, if the condition allows, replace the original high distribution model LED headlamps more of a complete set of